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How Sound Travels Sounds are carried by vibrating particles. Sounds can travel through: 1.Gases ( air in the room ) 2.Liquids ( water in a swimming pool. - ppt download
3M™ Littmann® Classic III™ Stethoscope Open Bell Conversion | Need an open bell option for your stethoscope? Our 3M™ Littmann® Classic III™ Stethoscope features a pediatric side that converts to a traditional
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